Mixing apparatus



June 15', 1926.

H. BLUM MIXING APPARATUS Filed Sept. 24, 1924 fnvjion Patented June 15, 192% UNITED STATES nos vrna BLUM, or SAN rna verseo, CALIFORNIA.

MIXING APPARATUS.

Application filed September 24; 1924. Serial No. 739;,612.

The present invention relates to liquid mixing and aerating apparatus, and more particularly to a type of apparatus com monly termed drink mixer. The embodiment of apparatus illustrated discloses a form designed particularly for drinl; mixing and counter use,'for-e;ample, in connection 'with soda fountains and soft drink parlors. It is to be understood that the idea of the invention may be so designed, arranged, and incorporated asto' be capable of arrangement in many different forms.

The inventionconsists in a means for creating alternate suction and pressure within a liquid container by moving a body of liquid in theform of a liquid piston and specifically in utilizing a portion of the liquid inthe liquidcontainer as a fluid pis--,'

ton and rapidly injecting and withdrawing the same from the container to cause arapld agitation and admixture of the contents of the container; the provision of a relief valve to breakor interrupt the pressure utilized to operate the liquid piston permitting the piston forming liquid to drain into'the container and deposit therein.

' lVith the above mentioned and other ob-' jects in view, the invention consists in the novel construction and combination of parts hereinafterdescribed, illustrated in the accompanying drawings, and set forth in the claims hereto appended, it"being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be re sorted to without departing from the spirit or sacrificing any of the advantages of the invention;

In the drawings disclosingone embodiment of the invention, Fig.1 is a view in vertical section of the embodimenttaken on line 11 of Fig. 3.

Fig. 2 is a transverse sectional view of the liquid reservoirtaken on line 2-2 of Fig. 1 and Fig, 3 is a View. in elevation of a battery of the mixers carried by a common base.

Referring to the several views of the drawings wherein like characters of reference designate corresponding parts, 1 indi cates an elongated base upwardly from which extends one or more tubular arms 2. The lower portion of the respective arms is formed with parallel side walls 3 providing a chamber in which is mounted to reciprocate the piston 4:, united through a conneCting rod 5 with the crank 6 on a rotating shaft 7.' The shaft is illustrated as mounting a band Wheel 8 connected through a bandor belt 9 with the power wheel 10' of a suitable motor 11", with the latter parts being positioned within the base 1 as illustrated. The upper endof each tubular arm 2 is curved as at 12 to overhang a portion of the base 1" and at its upper end mounts a fitting 13. The fittingcomprises an-u'pstand ng flangewa ll 14 terminating at its lower end 1n an openlng 15 and through said wall 14 extends a tubular channel 16,

one end'of which connects with the tubular arm 2 and the other end of which terminates centrally within the chamber formed by the wall '14:. The fitting supports a transparent shell 17 the upper open end of which is closed by a cap '18 remouably posi-- tioned thereover and depending from the cap is a concentric shield 19 extending downwardly into the upper portion of the space" formedby the shell 17. V A pipe 20 connects with one end of the tubular duct or conduit 16 and extends vertically within the shell. 17, itsup-per end affording a post with which the securing nut 21 has threaded con nection. The pipe'20 within the shield 19 is port-ed as at '22 and'below' the shield-car ries a substantially mushroom shaped ba'liie 23. Depending-from the opening '15 is a tubular spout 24 adapted to extend into a liquid container 25 through its open, top

when the loweredge oft-he container 25 rests on the supporting arm 26 extending outwardly from the'lower end of the tubular arm 2. The arm 2 near its point of-attach ment of the fitting'is provided with a relief port 27 controlled by a valve 28 tulcrumed as at 29 and depending from the valve is an arm 30 the rear [of whi'c'his adapted for positloning the rim of the liquid container 25 prior to its loweredge resting on thearm 26. The weight of the container so positioned operates the valve 28 to close the relief port 27Q In the top wall of the base 1, if it is so desired, a drip sump 31 may be positioned to catch the drippings from the spout 24. in Fig. 3, the agitators may be arranged in battery formation or it may be understood that they may be erected singly. The device operates in the following manner.

The operation of the piston 4 creates an alternate suction and pressure within the arm 2, the force of which in spout 2 1i is relieved as long as the port 27 remains open,

he operator positions a container filled with liquid to be mixed or agitated with its rim 25 in rear of the portion oi: valve 28 and rests its lower edge on an arm 26. The weight of the liquid in the container causes a closing of the port 27 andsubjects the spout 2a to the full suction and pressure action of piston A. On the'first down stroke of the pistona certain volume of liquid from the Container 25 is drawn upwardly into the tube and into the shell 17 to approximately the level indicated in Fig. 1 of the drawings; This quantity of material, on successive reciprocations oi the piston l, serves as'a liquid piston in its movement within the shell and within the spout 2A and thoroughly agitates and mixes the liquid within the container 25. The positioning of the port 22 connecting arm 2 with the interior of the shell 17 within the shield 19 at the upper end of the shell 17 precludes the drawing of the liquid from'the shell 17 into the arm 2 and the balile 28 precludes the splashing ofthe material in the shell up into the port 22. On the completion of the mixture the operator'tipping the container 25 inwardly admits of the opening of the port 27. This action permits air toenter the port and the liquid from the base of the shell to quickly drain into the container.

By making the shell 17 transparent it will be understood that the color of the mameans for alternately-creating suction and terial in the container which is desired to be mixed may be readily seen as it is drawn into the shell and agitated therein.

I claim: V v

1. A liquid mixing apparatus comprising a tube for insertion at one end into a liquid container, a liquid reservoir with the base of which the other end of the tube connects, a second tube leading from the reservoirto apolnt near lts upper one, and

pressure within the respective ,tubes and reservoir.

2. A liquid mixing apparatus comprising a .tube vfor insertion at one end into a liquid container, a reservoir with the base of which the other end of said tube connects, a second tube providing a support for the reservoir and first tube and communicating with the reservoir above the point of connection- 7 therewith of said first tube, and means for alternately creating suction and pressune within the latter tube. 1

3. A liquid mixing apparatus consisting of a spout for insertion into a liquid cone tainer, a fitting with which the other end of said spout connects, a transparent shell carried by the fitting and providing a reser- Voir, a lateral'port in the fitting, a tube connected with one'end thereof and extend ing upwardly into the shell, said port at fording a communication between its interior and the interior of the shell, a tubular support communicating with the other end of the port of said fitting, and means for creating alternate suction and pressure within saidsupport.

4. A mixing apparatus comprising a base, a tubular support carried thereby and provided on its interior with a pump chamber, a pump piston mounted therein, means for operating the pump piston to create alternate suction and pressure in said support, a reservoir carriedby' and connecting with the tubular support, and aspout depending I I from the reservoir and communicating at one end therewith and at a point below the 'pointof connection of said support.

.5. A portable mixing apparatus comprising a base, a tube exten'dingupwardly therefrom providing asupport and having a depending terminal portion for reception at one end in a liquid container, means within the base and cooperating with the first tube for alternately creating suction and pressure within the tube, said tube formed within its length with a vent, and means actuated by a receptacle positioned to receive the depending portion of the tube for closing said vent. V

6. A mixing tube comprising a base, a tube extending upwardly therefrom providing a support and having a depending terminal portion for reception at one end in a liquid container, means cooperating with the first tube for alternatelycreating suction and pressure within the tube, said tube provided within its length with a vent, and means actuatedby a receptacle positioned to. receive. the depending portion of the tube forclosing said vent.

In testimony whereof I have signed my name to this specification f HQSMER, BLUM; 

